4*HDMI Encoder to DVB-T Modulator

• Customization: Available
• Type: CATV Equipment
• Function: Signal Transmission Equipment
• Model NO.: HPS842A
• Certification: CE, ISO, RoHS, SGS
• Condition: New
• Transport Package: Carton
• Specification: CE, RoHS
• Trademark: CatCast
• Origin: Chengdu, Sichuan
• Production Capacity: 200 Set/Month

Product Description

                  4*HDMI MPEG4 Encoder DVB-T Moulator

 

Product Overview

HPS842A series products are HIPRO's new breakthrough all-in-one devices which integrate encoding (MPEG-2 HD/SD, MPEG-4/AVC H.264 HD/SD) and modulating to convert V/A signals into DVB-C RF output. It has equipped with 4 HDMI (4 SDI optional) channels input and 1 ASI input and output with 2 ASI ports and 1 UDP IP (4*SPTS) port.
Delay problem has been greatly reduced to achieve an extremely low value from the encoding progress to the decoding terminals. It adopts inner drawer-type structural design which greatly facilitates the change of encoding modules (HDMI/SDI /…) as needed. The signals source could be from satellite receivers, closed-circuit television cameras, Blue-ray players, and antenna etc. Its output signals are to be received by DVB-C TVs or STBs and etc.



Key Features

* MPEG2 & MPEG4 AVC/H.264 HD/SD encoding
*Up to 1920*1080@50P/60P supported (MPEG4 AVC/H.264)
*Up to 1920*1080@50I/60I supported (MPEG2 HD)
* 4* HDMI/SDI input
*1*ASI input for re-mux; 1*RF input for mix
*Simultaneously encoding each channel more than 10Mbps
*4* DVB-C RF out (4 carriers combined output)
*Support 4 * SPTS output
* Extremely low delay (optional)
* LCN support (Logical Channel Number)
* Excellent modulation quality MER≥42dB
* RF Frequency range 30Mhz~960Mhz
*  LCD display, Remote control and firmware
*  Web NMS management; Updates via web


Principle Chart




Specifications

Encoding section
Video

Encoding	MPEG2, MPEG4 AVC/H.264
Input	HDMI*4 (or SDI*4)
Resolution	1920*1080_60P, 1920*1080_50P, (-for MPEG4/H.264 only) 1920*1080_60i, 1920*1080_50i, 1280*720_60p, 1280*720_50P 720*480_60i, 720*576_50i

Audio

encoding	MPEG1 Layer II, MPEG2-AAC, MPEG4-AAC
Sample rate	48KHz
Bit rate	64kbps, 96kbps,128kbps, 192kbps, 256kbps, 320kbps

DVB-C Modulator Section

Standard	J.83A , J.83B, J.83C
MER	≥42dB
RF frequency	30~960MHz, 1KHz step
RF output level	-30~ -10dbm(81~97 dbµV), 0.1db step
J.83A
Constellation	16/32/64/128/256QAM
Symbol rate	5.000~9.000Msps adjustable
bandwidth	8M
J.83B
Constellation	64QAM/ 256QAM
bandwidth	6M
J.83C
Constellation	64QAM/ 256QAM
bandwidth	6M

System

Local interface	LCD + control buttons
Remote management	Web NMS
output	ASI out (BNC type); 4*SPTS out (RJ45, 100M
NMS interface	RJ45, 100M
Language	English

General

Power supply	AC 100V~240V
Dimensions	482*400*44mm
Weight	4.5 kgs
Operation temperature	0~45ºC

Why do we need 4 x DVB-C carrier output in one device?
 Firstly, it is to guarantee the sound picture quality of HD programs.
As we all know, to guarantee the picture quality of 1920x1080@50I/60I resolution HD program, the video bit-rate may exceed 10Mbps and even reach up to 15Mbps. However,
when the modulating constellation is 64QAM, the maximum possible bit-rate output for single DVB-C carrier is only around 20Mbps.
15Mbps x4 =60Mbps > 20Mbps.
It means the single DVB-C carrier simply can't carry the 4 channels 1080i HD program if the average bit-rate exceeds 10Mbps.
That's why we design 4*DVB-C carrier modulation board which quadruples the maximum possible bit-rate bandwidth up to 80Mbps and above when 64QAM constellation is used. This rightly makes it reliably carry 4 channels MPEG2 HD programs output simultaneously.
Below brief chart will help to more clearly illustrate the working principle.
Secondly, it is cost-saving.
Its high integration allows users to transmit more programs with fewer devices. It undoubtedly saves the cost for you and me.